We are pleased to announce the launch of the Guide to Sources Relating to Units of the Canadian Expeditionary Force. The guide is an indispensable starting point for researching the records that document Canada’s participation in the First World War. It is a unique finding aid that brings together references to records and files scattered throughout several different archival fonds, which relate to almost every unit in the CEF.

The Guide was originally developed over many years by Barbara Wilson, an archivist with the former National Archives of Canada, now Library and Archives Canada. The guide has subsequently been updated with more recent acquisitions from official records, private papers and diaries, and by many other contributors from Library and Archives Canada. The guide was reviewed and updated with references to the Ministry of Militia and Defence records and daily orders, which are described by Library and Archives Canada as Record Group 9 or RG9.

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